Restructure native codebase

native/jni/base/logging.cpp

@@ -0,0 +1,62 @@
+#include <cstdio>
+#include <cstdlib>
+
+#include <flags.h>
+
+#include "logging.hpp"
+
+using namespace std;
+
+int nop_log(const char *, va_list) { return 0; }
+
+void nop_ex(int) {}
+
+log_callback log_cb = {
+    .d = nop_log,
+    .i = nop_log,
+    .w = nop_log,
+    .e = nop_log,
+    .ex = nop_ex
+};
+
+void no_logging() {
+    log_cb.d = nop_log;
+    log_cb.i = nop_log;
+    log_cb.w = nop_log;
+    log_cb.e = nop_log;
+    log_cb.ex = nop_ex;
+}
+
+static int vprintfe(const char *fmt, va_list ap) {
+    return vfprintf(stderr, fmt, ap);
+}
+
+void cmdline_logging() {
+    log_cb.d = vprintfe;
+    log_cb.i = vprintf;
+    log_cb.w = vprintfe;
+    log_cb.e = vprintfe;
+    log_cb.ex = exit;
+}
+
+#define LOG_BODY(prio) { \
+    va_list argv;        \
+    va_start(argv, fmt); \
+    log_cb.prio(fmt, argv); \
+    va_end(argv);        \
+}
+
+// LTO will optimize out the NOP function
+#if MAGISK_DEBUG
+void LOGD(const char *fmt, ...) { LOG_BODY(d) }
+#else
+void LOGD(const char *fmt, ...) {}
+#endif
+void LOGI(const char *fmt, ...) { LOG_BODY(i) }
+void LOGW(const char *fmt, ...) { LOG_BODY(w) }
+void LOGE(const char *fmt, ...) { LOG_BODY(e); log_cb.ex(EXIT_FAILURE); }
+
+// Export raw symbol to fortify compat
+extern "C" int __vloge(const char* fmt, va_list ap) {
+    return log_cb.e(fmt, ap);
+}